A series of branched-chain methylsiloxane polymers built up of four-membered siloxane cycles and linear segmets of zero to four siloxy units, and another series consisting only of siloxane cycles of five to eight members were investigated. The samples were pyrolyzed at temperatures increased stepwise from 300 to 800 degree C. The pyrolysate was analyzed online by gas chromatography and mass spectrometry. In the pyrolysates, series of cyclic, bicyclic, and polycyclic methylsiloxane compounds were found. Quantitative gas chromatographic analysis of the pyrolysates shows that their composition reflects the composition and structure of the pyrolyzed polymethylsiloxane.
|Number of pages||11|
|Journal||Journal of polymer science. Part A-1, Polymer chemistry|
|Publication status||Published - Oct 1 1985|
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